Home / 8,871.35-13,299.80-3,321.58

Finding the Fourth Proportional to 8,871.35, 13,299.80 and 3,321.58

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Solution

The fourth proportional to 8,871.35, 13,299.80 and 3,321.58 is: 4,979.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.35 : 13,299.80 = 3,321.58 : x
  2. Step 2: Convert to fraction form
    8,871.35/13,299.80 = 3,321.58/x
  3. Step 3: Cross multiply
    8,871.35x = 13,299.80 × 3,321.58
  4. Step 4: Simplify right side
    8,871.35x = 44,176,266.58
  5. Step 5: Solve for x
    x = 44,176,266.58/8,871.35
  6. Step 6: Final answer
    x = 4,979.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.